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18-letter words containing a, p, e, h

  • palm beach gardens — a city in SE Florida, near North Palm Beach.
  • palmer archipelago — a group of islands in the South Atlantic Ocean, off the NW coast of the Antarctic Peninsula.
  • paper handkerchief — a handkerchief made from tissue paper
  • par for the course — an equality in value or standing; a level of equality: The gains and the losses are on a par.
  • parachute regiment — an airborne regiment of an army
  • paraurethral gland — any of a group of vestigial glands located in the posterior wall of the urethra in women.
  • pass the hat round — to collect money, as for a cause
  • passive euthanasia — a form of euthanasia in which medical treatment that will keep a dying patient alive for a time is withdrawn
  • pathname separator — (file system)   The character used to separate elements of a path or pathname. Under Unix and POSIX.1 compliant systems the pathname separator is the (forward) slash, in MS-DOS backslash serves the same purpose. For obvious reasons the no directory or file name can contain this character.
  • patron of the arts — someone who acts as a patron to or supports charities, organizations, and individuals that work in or concern the arts
  • pave the way (for) — to prepare the way (for); facilitate the introduction (of)
  • pemphigus vulgaris — a potentially fatal blistering skin disease, characterized by large blisters on the skin, mucous membranes of the mouth, genitals, intestines, etc, which eventually rupture and form painful denuded areas from which critical amounts of bodily protein, fluid, and blood may be lost
  • pennsylvania dutch — the descendants of 17th- and 18th-century settlers in Pennsylvania from southwest Germany and Switzerland.
  • peppermint camphor — menthol.
  • permanent hardness — hardness of water that cannot be removed by boiling as it results mainly from the presence of calcium and magnesium chlorides and sulphates
  • peter and the wolf — a composition by Sergei Prokofiev written in 1936. It is a children's story with both music and text, spoken by a narrator accompanied by the orchestra
  • peter tschaikowsky — Peter Ilyich [il-yich] /ˈɪl yɪtʃ/ (Show IPA), Tchaikovsky, Peter Ilyich.
  • phanerocrystalline — (of a rock) having the principal constituents in the form of crystals visible to the naked eye.
  • phase-shift keying — (communications)   (PSK) A digital modulation scheme that conveys data by changing the phase of a carrier wave. The data can either determine the absolute phase relative to the unmodulated carrier or reference signal ("coherent phase-shift keying", CPSK) or the change in phase ("differential phase-shift keying", DPSK). The number of different phases used determines the amount of data that can be transmitted in each cycle. Each cycle can be considered to constitute one "symbol", e.g. with two possible phases, each cycle carries one bit. The more phases that are used, the less tollerant to noise the transmissions becomes. Alternatives to PSK are amplitude-shift keying (ASK) and frequency-shift keying (FSK).
  • phenylacetaldehyde — a colorless, oily, water-insoluble liquid, C 3 H 1 4 O, having a hyacinthlike odor: used chiefly in perfumery.
  • phoenician juniper — a type of juniper that is found in the Mediterranean region
  • phosphatidylserine — any of a class of phospholipids occurring in biological membranes and fats
  • photochemical smog — air pollution containing ozone and other reactive chemical compounds formed by the action of sunlight on nitrogen oxides and hydrocarbons, especially those in automobile exhaust.
  • photoisomerization — isomerization induced by light.
  • photosensitization — to make (a material) photosensitive, as by the application of a photosensitive emulsion.
  • phthalic anhydride — a white, crystalline, slightly water-soluble solid, C 8 H 4 O 3 , used chiefly in the manufacture of dyes, alkyd resins, and plasticizers.
  • physical chemistry — the branch of chemistry dealing with the relations between the physical properties of substances and their chemical composition and transformations.
  • physical education — systematic instruction in sports, exercises, and hygiene given as part of a school or college program.
  • physical geography — the branch of geography concerned with natural features and phenomena of the earth's surface, as landforms, drainage features, climates, soils, and vegetation.
  • physical inventory — To carry out a physical inventory is to count all the stock on hand.
  • physical therapist — sb who performs physiotherapy
  • phytohemagglutinin — a lectin, obtained from the red kidney bean, that binds to the membranes of T cells and stimulates metabolic activity, cell division, etc.
  • plains grasshopper — a large, destructive short-horned grasshopper, Brachystola magna, of the western U.S., marked by pinkish hind wings.
  • planned parenthood — an organization that gives out information on the planning of the number and spacing of the births of one's children, as through the use of birth-control measures
  • play the race card — to introduce the subject of race into a public discussion, esp to gain a strategic advantage
  • plumber's merchant — a shop or business that sells things needed for the job of installing and repairing pipes, fixtures, etc, for water, drainage, and gas
  • policeman's helmet — a Himalayan balsaminaceous plant, Impatiens glandulifera, with large purplish-pink flowers, introduced into Britain
  • porter-house steak — Also called porterhouse steak. a choice cut of beef from between the prime ribs and the sirloin.
  • positively charged — having a positive charge
  • potassium chlorate — a white or colorless, crystalline, water-soluble, poisonous solid, KClO 3 , used chiefly as an oxidizing agent in the manufacture of explosives, fireworks, matches, bleaches, and disinfectants.
  • potassium chloride — a white or colorless, crystalline, water-soluble solid, KCl, used chiefly in the manufacture of fertilizers and mineral water, and as a source of other potassium compounds.
  • potassium sulphate — a soluble substance usually obtained as colourless crystals of the decahydrate: used in making glass and as a fertilizer. Formula: K2SO4
  • pound the pavement — a paved road, highway, etc.
  • preparatory school — a private or parochial secondary school, especially one boarding its students and providing a college-preparatory education.
  • prepare the ground — make conditions ready
  • prerelease showing — a showing of a film before it goes on general release
  • press photographer — a photographer who works for a newspaper, magazine, etc
  • price on sb's head — If there is a price on someone 's head, an amount of money has been offered for the capture or killing of that person.
  • prison authorities — the people in charge of running a prison
  • probability theory — the theory of analyzing and making statements concerning the probability of the occurrence of uncertain events. Compare probability (def 4).
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